Some English descriptions regarding the stop valve
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I would like to ask the experts here: In the detailed description of a certain project’s stop valve, there is the following information, and I’m not quite sure what it means. I hope you can help me understand it. Swivel Plug Disc OS & Y/RSRO,HO
Regarding the English descriptions of the globe valves you mentioned, here are their respective meanings: 1. **Swivel Plug Disc**: This refers to a type of valve element used in globe valves, namely a rotating plug-type valve element. This valve core can rotate on the valve seat, thereby achieving a better sealing effect and reducing wear. 2. **OS & Y**: This is an abbreviation for “Outside Screw and Yoke” (external thread and bracket). In a globe valve with this structure, the threads of the valve stem are located outside the valve body; when the valve is opened or closed, the valve stem rises or falls accordingly, allowing for an easy visual indication of the valve’s open or closed state. 3. **RSRO**: This stands for “Rising Stem with Rising Handwheel”, referring to a design in which both the valve stem and the handwheel move upward. It is commonly used in applications where it is necessary to visualize the position of the valve stem in order to indicate whether the valve is open or closed. 4. **HO**: This likely refers to “Handwheel Operated”, indicating that this globe valve is operated using a handwheel. These terms primarily describe the operating methods and structural features of valves, helping to understand their functions and suitable applications. .
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